The Dreamwave MTMTE may be worth a fair bit as even the IDW reprint seems hard to get hold of now. The other Dreamwave stuff less so, but you still stand a good chance of at least getting the cover price back.

The others have either been superseeded by better editions (the Almanacs by the recent complete version, the Premium by the "Phase" hardcovers and paperbacks) or never generated that much excitement to start with.

You might get lucky and invoke a mad fan bidding war on Ebay though, especially for the signed book even with Furman basically having signed everything and people being off Don these days.